Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Merrickville in December experiences a subtle temperature decline, with average high-temperatures reducing from a chilly 43°F (6.1°C) in November to an icy 32.9°F (0.5°C). Merrickville observes an average low-temperature of 23°F (-5°C) during December nights.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 87%.Rainfall
In Merrickville, in December, during 11.5 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Merrickville, during the entire year, the rain falls for 169.3 days and collects up to 33.54" (852mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Merrickville, during December, snow falls for 16.5 days and regularly aggregates up to 7.32" (186mm) of snow. Throughout the year, there are 89.3 snowfall days, and 43.94" (1116mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December in Merrickville, sunrise is at 7:10 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December is 2.9h.UV index
February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Merrickville have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Merrickville, NY
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 23°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in December
Merrickville, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Merrickville, NY
- Average wind speed in December: 8.6mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Merrickville, NY
- Average humidity in December: 87%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is July (79%).
Average rainfall in December
Merrickville, NY
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in December
Merrickville, NY
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Merrickville, NY
- Average snowfall in December: 7.32"
The month with the highest snowfall is January (9.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Merrickville, NY
- Average snowfall days in December: 16.5 days
The month with the highest number of snowfall days is January (20.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Merrickville, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in December
Merrickville, NY
- Average sunshine days in December: 7.6 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (5.7 days).
Average UV index in December
Merrickville, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in December
Merrickville, NY
- Average cloud cover in December: 71
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in December
Merrickville, NY
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, March, August, September and December (4mi).
Merrickville, New York, USA
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